{"id":"CVE-2026-31802","state":"PUBLISHED","title":"node-tar Symlink Path Traversal via Drive-Relative Linkpath","description":"node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11.","publishedAt":"2026-03-09T21:11:56.668Z","updatedAt":"2026-03-10T14:56:35.229Z","severity":{"score":8.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["isaacs node-tar"],"affected":[{"vendor":"isaacs","product":"node-tar","versions":[{"version":"< 7.5.11","status":"affected"}]}],"references":["https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256","https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31802.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31802","state":"PUBLISHED","datePublished":"2026-03-09T21:11:56.668Z","dateUpdated":"2026-03-10T14:56:35.229Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-09T16:33:42.913Z"},"containers":{"cna":{"title":"node-tar Symlink Path Traversal via Drive-Relative Linkpath","descriptions":[{"lang":"en","value":"node-tar is a full-featured Tar for Node.js. Prior to version 7.5.11, tar (npm) can be tricked into creating a symlink that points outside the extraction directory by using a drive-relative symlink target such as C:../../../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This vulnerability is fixed in 7.5.11."}],"affected":[{"vendor":"isaacs","product":"node-tar","versions":[{"version":"< 7.5.11","status":"affected"}]}],"references":[{"url":"https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256","name":"https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad","name":"https://github.com/isaacs/node-tar/commit/f48b5fa3b7985ddab96dc0f2125a4ffc9911b6ad","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-09T21:11:56.668Z"},"source":{"advisory":"GHSA-9ppj-qmqm-q256","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/isaacs/node-tar/security/advisories/GHSA-9ppj-qmqm-q256","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-10T14:56:31.266727Z","id":"CVE-2026-31802","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-10T14:56:35.229Z"}}]}}}